tyre pressure

[jman69]

Hi fellas, can anyone advise me on correct tyre pressures for road use ? Manual says one thing tyre fitter says another. I have cooper a.t.3' s. 265/75 16.

[Morton]

run what the tyres company says it should be run at, I ran coopersfor 6 years & found them better at 36-front & appx 38-40 at the rear but I carried 4 kids & associated kids stuff, if you are running 30 PSI the tyres will scrub out unevenly earlier & the fronts will scollap faster than normal, I have no idea what the standard is for Patrols

[jman69]

Ok, thanks Morton. Think the manual says 29 front and 36 rear? Seam like odd numbers to me but what do I know ? Some where in the mid thirties sounds about right

[Winnie]

I'm running 42PSI front and rear on the same size tyres as per the tyre fitter

[WYLD333]

I run 40psi

[oilpond]

I run 38cold.

[Bloodyaussie]

42 front and rear

[James_R]

35 on mine, same tyre size as your truck mate.

[Lawrence]

35 on mine, same tyre size as your truck mate.

32 front and rear unless carrying a lot of weight

[growler2058]

34..........
As recommended by Tyre shop

Slap N Tap ;)

[Bmak]

I run 35. Any higher and I find the 80k wobble gets worse

[BigRAWesty]

40 here. Use to run 35 but the fronts scallop out to quick..

Kallen Westbrook
Owner of
Westy's Accessories (http://www.nissanpatrol.com.au/forums/showthread.php?15134-Westy-s-Accessories.-A-small-back-yard-builder.)

[Bloodyaussie]

Running such low pressures are so the ride seems smooth but what happens is the tyres wear too quickly and they generate more heat shorting there life.

My little 2lt car can run 32psi but a 3t rig should run much higher

I tow a lot so 42 psi for me but if I did not then 40psi would do but 35 psi and below is ridiculous...........

Love to hear the reasoning others have for running low pressures???

[lorrieandjas]

Hi BA - agree - I run them at 38-40 cold. 42 laden. Only time I run them low is mud, sand, traction reasons.

Jas

[threedogs]

WOW you guys run high pressures, I'll run 40psi for hwy duties and 35 psi around town, and down to 16 psi off road

[lorrieandjas]

WOW you guys run high pressures, I'll run 40psi for hwy duties and 35 psi around town, and down to 16 psi off road

Hi threedogs. I just based mine on what the dealer recommended - when I put the Mickey Thompsons on he recommended no lower than 38 on the black top - for all other surfaces was play it by ear. Also recommended 2-4 PSI increase for loads.

Jas

[nissannewby]

Google the 4psi rule for tyres. It basically explains that if you get a larger increase in pressure of 4psi after driving for a period then your pressures are to low etc etc. Its a little bit consuming to start with but once you have it sussed its all good. I dont run anything under 38psi.

[Bob]

You Guys definately run higher than me

200(29) Front and 250(36) Rear

No abnormal wear and a Good ride

[lorrieandjas]

Interestingly the tyre pressure placard on the 2012 GU 8 recommends 28 front and rear (30 if loaded on rear).

Jas

[Bloodyaussie]

Go by tyre manufacture not car manufacture.. they want it to seem comfortable... 29psi is just way to low for a 3t car... also what gauge do you lot use.

Most petrol station gauges are out by a fair bit, I have an expensive gauge I got for racing and if using a petrol station I always check it and find some gauges can be out by as much as 10psi .

My tyre inflator gauge is out by 5psi and it cost $60.

[Bob]

The following was taken from the Maxis Tyre Site

Proper tire inflation is essential! Your vehicle cannot handle its load without the right amount of air pressure - and the results could be disastrous, including accidents, serious injuries and death. Most tire failures are caused by under-inflation. Proper inflation is also essential for your vehicle's performance. Unless your tires are properly inflated, you won't get the best gas mileage from your vehicle. In fact, you could lose as much as 5% of your car's optimum mileage by failing to properly inflate your tires.

Check your tire pressure at least once a month, and always check before long trips. Use a tire gauge, and be sure that your tires are still cold when you check them. If your vehicle still has its original tires, use the optimum pressure specified by the vehicle manufacturer as a guide. If you've replaced your tires, check with your dealer regarding optimum tire pressure.



I would like to hear some input from a member in the Tyre Trade

[jack]

Just checked my tyre pressure placard on the 2012 GU 8 and it recommends 29 front and 32 rear (no mention of loaded pressure). Strange that it's different to yours Jas, mine is the Simpson Edition but that's only an alloy bar as extra weight. I'll check with Bridgestone and see what they recommend.

Cheers

[Bob]

Another Chart that I found

http://www.etyrestore.com.au/Tyre_Pressure_Charts.html

[threedogs]

There is a 4 psi difference for the optimum pressure but I've fogotten how it works
When I brought my patrol the pressures were 65 psi ,because the driver said thats what written on the tyre[idiot}

[jack]

Just rang Bridgestone, he recommended 40 front and rear, and 45 if towing 1500kg. He said ignore the tyre pressure placard from the dealer as they don't have to pay for the tyres, they just want to give you the most comfortable ride. These are recommend pressures for blacktop naturally.
Also I use a digital tyre pressure gauge (not sure if it's 100% accurate), but at least I know my pressures are consistent.

Cheers

[Bloodyaussie]

Just rang Bridgestone, he recommended 40 front and rear, and 45 if towing 1500kg. He said ignore the tyre pressure placard from the dealer as they don't have to pay for the tyres, they just want to give you the most comfortable ride. These are recommend pressures for blacktop naturally.
Also I use a digital tyre pressure gauge (not sure if it's 100% accurate), but at least I know my pressures are consistent.

Cheers
Thank you , thats what I was trying to say.... same in the motorcycle industry..... I was part of for 15 years!!

[lorrieandjas]

Just checked my tyre pressure placard on the 2012 GU 8 and it recommends 29 front and 32 rear (no mention of loaded pressure). Strange that it's different to yours Jas, mine is the Simpson Edition but that's only an alloy bar as extra weight. I'll check with Bridgestone and see what they recommend.

Cheers

Hi mate - I'll re-check - my sticker is in the glovebox.

Jas

[Morton]

[QUOTE=Westy's Accessories;316450]40 here. Use to run 35 but the fronts scallop out to quick..

x 2 on this opinion, low 30's is to low